Cupping test for tinplate

The cupping test for tinplate involves using a stamping die to stretch and form the tin-coated steel sheet into a cup-shaped bulge, allowing observation of surface coating cracking. It is used to evaluate the ductility of the metal substrate and the adhesion of the coating, commonly applied in quality testing for packaging materials such as food cans and chemical barrels.
Selection
When selecting, consider the compatibility of substrate thickness with the material to be tested, ensure the tin coating amount meets product usage requirements, and note that surface smoothness affects detection accuracy. Prioritize samples that are flat and free of scratches, ensure the stamping die size covers common deformation ranges, and control the laboratory environment’s temperature and humidity to avoid interference with test results.

Terms

Standards

Instruments

Support accurate deformation of 0.01mm stride, maximum depression force 35KN, with intelligent lighting interface and adjustable LED Illuminant, suitable for steel and aluminum panel testing to ensure high contrast ratio visibility.

$ 12932.00

Film thickness 0.3mm fillet Perforating design, easy to paint adhesion, hardness, Impact and other performance tests, about 70 pieces per kilogram to meet the needs of batch experiments.

$ 81.00

Size 70x130mm Film thickness 0.3mm, rounded corners Perforating design is convenient for coating performance testing, suitable for adhesion, hardness, Impact and other film testing scenarios.

$ 81.00

Film thickness 0.3mm fillet Perforating design, suitable for coating adhesion, hardness, Impact and other performance testing, to ensure that the film preparatory smooth and stable.

$ 81.00

Double-sided uniform tin plating, surface mass I, Hardness T52, standard thickness 0.28mm, provide crimping listening plate, rounded corners with or without holes and other specifications, single batch pRoduction of 10w sheets.

$ 138.00

Side rocker lift design to ensure smooth operation, the lifting process can be retracted and continue; with 0.01mm height display indexing, accuracy of 0.05mm, no need for each boot zero, no conductive requirements for the test plate.

$ 1445.00

Punch diaMeter 20mm, indentation accuracy +/- 0.05mm, maximum depth 10mm, can measure the minimum depth of cracking or from the substrate of the coating, support single and double top coating test, equipped with digital display resolution 0.01mm.

$ 815.00

Size 100x150mm, Film thickness 0.3mm, rounded corners Perforating design for easy fixing and operation, suitable for a variety of industrial coatings performance testing, to ensure the accuracy of film testing and repeability.

$ 83.00

The punch is pushed to the test plate at a constant speed of 0.2 +/-0.1mm/s, and the thickness range of the test plate is 0.30-1. 25mm, which can detect the degree of coating cracking and is suitable for testing of various materials.

$ 1029.00

Using double-sided uniform tin plating process, the surface mass reaches class I, Hardness T52, standard thickness 0.28mm, to ensure accurate and reliable film test results.

$ 114.00

The indentation speed is adjustable 0.01-0 mm/s, the maximum indentation force is 5000N, equipped with emergency button and color touch screen, safe and convenient operation, suitable for a variety of material testing.

$ 2090.00

Using large torque stepper motor to achieve automatic reset to zero, indentation accuracy of 0.01mm, support 0.1-0 mm/s adjustable speed, through the indentation depth to determine the minimum depth of coating cracking or disengagement.

$ 3914.00

High Accuracy Position Sensor, indentation accuracy of 0.01mm, the maximum can be measured 1.25mm thick plate, automatic zero after the test without cumulative error, with 10 times magnifying glass for easy observation.

$ 1380.00

Sinking diaMeter 20mm, maximum depth 10mm, with automatic and manual zeroing function, can be single and double top coating laminate test, sinking accuracy up to +/- 0.05mm, resolution 0.01mm.

$ 803.00

The bending diaMeter of putty film cracking peeling is tested by bending test plate, and the shaft Rod size is 50mm and 100mm. It is suitable for 0.2-0 mm thick tinplate substrate, and the operation is simple and reliable.

$ 228.00

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